/*      main routine from li-touch.c*/    void main(){    while (1) {        /* set speed of left motor based on right eye */        motor(LEFT_MOTOR, normalize(analog(RIGHT_EYE)));        /* set speed of right motor based on left eye */        motor(RIGHT_MOTOR, normalize(analog(LEFT_EYE)));                /* check for touch sensors */        if (digital(LEFT_TOUCH)) {            backward();            sleep(.25);            right();            sleep(.4);        }                if (digital(RIGHT_TOUCH)) {            backward();            sleep(.25);            left();            sleep(.4);        }    }}